All items in category Magazine Articles

Green Audio and Then Some

May 27, 2015 by Mike Klasco

Green Audio and Then Some

What are my two cents on criteria for sustainable product design? Bioplastics, sustainable, biodegradable, or end of life recyclable attributes are all aspects of a truly green product. I think that a conscionable green design philosophy focuses on the total integration of “good citizen” eco-friendly materials and processes and long, useful life.

$Diffraction Doesn’t Have to Be a Problem$

May 27, 2015 by David Ralph

Diffraction Doesn’t Have to Be a Problem

This article shows an easy way to control baffle diffraction using a stepped baffle example. The author experiments with the use of felt, directly applied to the baffle and measures the results. Each piece of felt and its placement has different results. The article clearly demonstrates the diffraction effect on speakers and the benefits of having it under control.

Driver Selection for Multi-Way Speakers

May 21, 2015 by Richard Honeycutt

Driver Selection for Multi-Way Speakers

Speakers evolved from a single sound source to having separate low-frequency and high-frequency drivers, each optimized for its own frequency range, to multi-way designs, with additional low-mid, high-mid and even super-high frequency drivers. Dr. Richard Honeycutt explains how to optimally choose these drivers. This article was originally published in Voice Coil, January 2012.

Minimum Pole Diameter Tool from Redrock Acoustics

May 5, 2015 by Patrick Turnmire

Minimum Pole Diameter Tool from Redrock Acoustics

The amount of flux running through the pole in a conventional “Hamburger” motor structure is a key loudspeaker design element that is often a limiting factor in the design process. PoleSolver is a design tool from Redrock Acoustics that makes all the different calculations quick and easy. An article originally published by Voice Coil, August 2010.

A Look at Voice Coil Collars

April 21, 2015 by Mike Klasco

A Look at Voice Coil Collars

There are many subtle ways a speaker designer can use the collar to “tune” the speaker-design for optimum response, added strength, increased thermal tolerance, better assembly fit, and more. Many materials are available for use as a collar but a careful understanding of the physical properties of these materials is required for optimum selection. Originally published by Voice Coil, May 2012.

Measurement Microphones: An Interview with Steve Temme

March 31, 2015 by Mike Klasco

Measurement Microphones: An Interview with Steve Temme

Mike Klasco interviewed Steve Temme, President of Listen, and asked about the important features and how to get the best performance of test and measurement microphones. He also learned about Listen’s recently released measurement microphone power supply. Originally published by Voice Coil, November 2013.

Show Report: Rocky Mountain Audio Fest 2014

March 27, 2015 by Oliver A.Masciarotte

Show Report: Rocky Mountain Audio Fest 2014

It being my seventh trip to Denver’s mile-high Tech Center district, I thought I knew what to expect. An audio engineer friend and I decided to drive to Colorado from Minneapolis. The weather was unseasonably warm and the traffic sparse, enabling us to ignore the piloting and discuss the technology that would be unveiled during the Rocky Mountain Audio Fest’s 11th iteration.

Actran’s Acoustic and Vibration Simulation Software

March 23, 2015 by David Burd

Actran’s Acoustic and Vibration Simulation Software

The kind of acoustic simulation tools that were once the exclusive province of automotive and aerospace engineers are now available to loudspeaker designers. A speaker designer working in a home studio can design a new enclosure or ported box using the same simulation technology automotive engineers use to design quiet auto interiors or, more precisely, almost the same simulation technology.

Voice Coil Spotlight: The Beryllium Advantage

March 16, 2015 by Michael Adams & Ken Berger

Voice Coil Spotlight: The Beryllium Advantage

Since its formation, VUE Audiotechnik has been engaged in a strategic development partnership with Materion Electrofusion, the world’s leading supplier of genuine beryllium. This article explores beryllium as a high-performance alternative to aluminum and titanium. Originally Published by Voice Coil, April 2013

Characterizing the Microspeaker Industry

March 11, 2015 by Mike Klasco

Characterizing the Microspeaker Industry

Microspeakers are manufactured predominantly in Asia. Many microspeaker manufacturers in Taiwan, Korea, and Hong Kong started in the 1970s with buzzer production, which included household appliances, automotive warnings, telephone ringers, and so forth. Mobile audio products have increased microspeaker consumption and stretched the microspeakers’ sound quality requirements.

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